CVE-2026-73473: medium-severity vulnerability in GStreamer gst-plugins-good
Gstreamer1-plugins-good: gstreamer: missing subindex entry count validation in avidemux leading to denial of service
Published
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.5epss 0.1%
A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
GStreamer · gst-plugins-goodRelated CVEs — GStreamer gst-plugins-good
In the same product, most dangerous first.
CVE-2026-73433MEDIUMGstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux fujifilm strd parsing leading to out-of-bounds read/writeEPSS 0.1%CVE-2026-73434MEDIUMGstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsingEPSS 0.1%CVE-2026-73472MEDIUMGstreamer1-plugins-good: gstreamer: integer overflow in avidemux superindex/subindex parsing leading to out-of-bounds readEPSS 0.1%CVE-2026-73471MEDIUMGstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux nikon metadata tag parsingEPSS 0.1%